Again, just the stacks of $100 USD and not the foreign notes, nor the cabinet of bills, nor the bundles of $20 USD, I think I see:

35 stacks across the front.
10 even heights of bundles from the back to front (the front row (11th row) is 7 bundles high, 25 wide with 17 of the 35 being 8 bundles high.

Each bundle appears to be made up of 100, $100 USD bills; $10,000 USD per bundle.

My calculation for the $100 bills is $37,620,000.

One would need about 580 more of what is pictured to get to $22B.

That's a BIG room!

But, my math could be wrong.